Automatic railroad-gate



J. K. YODER.

AUTOMATIG RAILROAD GATE.

(No Model.)

No. 306,890. Patented Oct. 21, 1884 V Fi 2 #4,; M. flow 1w.

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NITED STATES PATENT OFFICE.

JOHN K. YODEB, OF LIBERTY, LOGAN COUNTY, OHIO.

AUTOMATIC RAILROAD-GATE.

fiPECIPICA'I'ION forming part of Letters Patent No. 306,890, datedOctober 21, 1884.

Application filed March 1 1884. (No model.)

To 01% whom itmay concern.-

Be it known that I, JOHN K. YODER, a citizen of the United States, and aresident of Liberty township, in the county of Logan; and State of Ohio,have invented a new and useful Automatic Railroad-Gate, of which thefollowing is a specification.

My invention consists of an improvement for gates at railroad-crossingsof streets or roads, and is briefly described as follows;

Figure 1 is a side view showing the gate raised and held so by theweight attached to the crank on the axle of the gate, and also a view ofthe operating-wheels, levers, 850. Fig. 2 is an end view of the gateraised, with the crank held down by the weight, and of the of the railin such manner that the wheels of the train shall depress the front endof the trip and release the pawl from the ratchet.

A is the railroad-rail; B B O G, the operating-wheels; D D, rods, ropes.or chains connecting wheels B B O O, (passing around B;) E E, standardsoperated by the wheels of the passing train to turn the wheels B B (l C;F F, lugs on wheels B B, against which standards E E press to turn thewheels; G G, points at which the rod or rope D is fastened to wheels BO; H, rod connected with the wheel 0, and running to another pair ofwheels similar to B B, to operate another gate; I, pivot on which gateishung; K, crank on end of pivot, to which is attached aweight, L, by rodN; M, standard or post on which gate is mounted; O, the gate; P, leveron the axis of wheel 0, (attached to weight L,) which, as thewheelrevolves, raises the weight and allows the gate to fall intoposition across the street; Q, ratchet on axle of wheel 0, whichposition again.

dotted lines, which will raise the weight L Y correspondingly, and allowthe gate 0, which is not held in perpendicular by the weight L on crankK, to assume a horizontal position by the weight of the long arm of thegate overcoming that of the short arm. The turning of wheels B B O O isaccomplished by the wheels of the train coming in contact with thestandards E E,which strike against lugs or pins F F, and thus turn thewheels. The standards E E in practice are located immediately next therail and weighted at the bottom, so

train passes. Standard Eis made longer than E, so that the work begun bythe train striking E may be continued when it strikes E. As the wheel 0is turned in the direction shown by the arrow, it is held to theposition reached by the pawl on the trigger R engaging with the ratchetQ on the axle of wheel 0. As the train passes the gate, the wheels pressupon the trigger R and release the pawl from the ratchet Q, allowing theweight L to fall and cause the gate to assume a vertical In the drawingsI have brought wheels B B O O closer to each other than in practice, toshow the principle in the drawings; but in practice the wheels B Barelocated a sufficient distance up the track to close the gate before thetrain gets nearit, and in practice I generally turn the gate to pointthe opposite direction from wheels B B.

I do not claim, broadly, the raising of a gate by means of rods andwheels; but

What I claim is The combination, with wheelsB B O O, ropes D, lever P,weight L, and crank K, of

the standards E E, trigger R, and ratchet Q, g

as and for the purpose set forth.

v v JOHN K. YODER. Attest:

E. K. CAMPBEL M. KERNAN.

as to assume a vertical position as soon as the

